This is definitely doable from the amp. All it takes is an external antenna switch with a control port compatible with RS232, Ethernet, USB, or one of the amp’s multi-purpose digital output lines. (These have other uses, too, such as SWR alarm output.)
To select among antennas from the amp, you could do any of the following: - tap the ANT switch to go between two or more antennas in rotation - tap ANT then use the UP/DN switches - assign two frequently-used antennas to the front-panel PF1 and PF2 switches In all cases, the LCD would show your selection from among N external antenna jacks. We can adapt the firmware to handle any such scenario. Wayne N6KR > On Jan 25, 2018, at 7:58 PM, K9MA <k...@sdellington.us> wrote: > > I'm concerned about the same issue: Multiple antennas on one band. I have an > automated antenna selection system. In addition to following the band data > from the transceiver, there are switches to select antennas. I frequently > have to very quickly switch antennas, so it must involve only a single > switch. Using a mouse with the computer is nowhere near fast enough and I > really don't want to make it dependent on the computer, anyhway. However, my > antennas have different impedances, so require different ATU settings. So, > how can I tie the KPA1500 ATU into my antenna control switch so it > automatically switches settings? All the antenna switching is external to > the amp, so only a single amp output is used. The ideal would be a control > line to the amp, controlled by the same switch that selects antennas, which > would select ATU settings. I really don't want to make it dependent on the > computer. I expect others have the same issue. Can the KPA1500 be made to > do something like this? > > 73, > Scott K9MA > > -- > Scott K9MA > > k...@sdellington.us > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@elecraft.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
